   {:out-dir "public"
    :filterer identity
    :extensions [".html"]
-   :sortby (fn [file] (:date-published file))
+   :sortby :date-published
    :comparator (fn [i1 i2] (compare i2 i1))})
 
 (deftask collection

                                  (into {})))
              options (assoc options :grouper meta-grouper)]
          (render-pre-wrap {:task-name task-name
                            :render-paths-fn assortment-paths
                            :options options
                            :tracer tracer}))))


        (not (ifn? grouper))
        (u/fail (str task-name " task :grouper option value should implement IFn\n"))
        :else
        (let [;; Make sure task-level metadata gets added to each entry
              meta-grouper (fn [entries]
                             (->> entries
                                  grouper
